Display is dim, flickering, or some segments/LEDs do not light.

Safety first: Unplug before removing the control panel.

Steps:

• Check viewing angle and lighting: Ensure the dimness is not due to ambient light or viewing angle.
• Access display PCB: Remove the front bezel and inspect the display board and its connector.
• Reseat connector: Disconnect and reconnect the display cable to ensure good contact.

If segments or backlight remain faulty, replace the touch/display control PCB. If multiple low-voltage outputs are affected, the main control board may be under-supplying power and should be checked.